Base | Representation |
---|---|
bin | 1001001011101… |
… | …0100011100101 |
3 | 2200110122201120 |
4 | 2102322203211 |
5 | 34324402434 |
6 | 3453244153 |
7 | 645232263 |
oct | 222724345 |
9 | 80418646 |
10 | 38512869 |
11 | 1a81531a |
12 | 10a93659 |
13 | 7c959a5 |
14 | 5187433 |
15 | 35ab349 |
hex | 24ba8e5 |
38512869 has 8 divisors (see below), whose sum is σ = 51720480. Its totient is φ = 25490256.
The previous prime is 38512823. The next prime is 38512883. The reversal of 38512869 is 96821583.
38512869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38512869 - 212 = 38508773 is a prime.
It is a super-2 number, since 2×385128692 = 2966482157222322, which contains 22 as substring.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a self number, because there is not a number n which added to its sum of digits gives 38512869.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38512889) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45762 + ... + 46595.
It is an arithmetic number, because the mean of its divisors is an integer number (6465060).
Almost surely, 238512869 is an apocalyptic number.
It is an amenable number.
38512869 is a deficient number, since it is larger than the sum of its proper divisors (13207611).
38512869 is a wasteful number, since it uses less digits than its factorization.
38512869 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92499.
The product of its digits is 103680, while the sum is 42.
The square root of 38512869 is about 6205.8737499243. The cubic root of 38512869 is about 337.7032893234.
The spelling of 38512869 in words is "thirty-eight million, five hundred twelve thousand, eight hundred sixty-nine".
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